Stabilizing dual-phased perovskite towards high performance photovoltaics with enhanced batch stability and consistency.

ABSTRACT: Fabricating high-performance perovskite solar cells (PSCs) with solution processing is conducive to low-cost commercial production, it is therefore rather critical to stabilize perovskite in both solution and solid phases. For this purpose, the speed-up ageing of perovskite solution in air was systematically studied and its severe spontaneous degradation was observed. To address this issue, we introduce 4-(trifluoromethyl) phenylhydrazine (TFPH) to modify the perovskite solution, which presents enhanced storage stability. Consequently, when the modified solution was used to prepare PSCs, we obtained much improved and well consistent power conversion efficiencies (PCEs, ~ 26.0%) regardless of the perovskite solution ageing time, as well as exciting operational stability, which maintains PCE

SUBMITTER: Zhang G 

PROVIDER: S-EPMC12484941 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature